com.google.appengine.api.search.query

## Class QueryTreeBuilder

- java.lang.Object
- - com.google.appengine.api.search.query.QueryTreeBuilder

-     public class QueryTreeBuilder
      extends java.lang.Object

  A generator of AST representation of a query. This class uses the given factory to produce a query parser which parses user specified query. If successful it returns the root of an AST representing the parsed query.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `QueryTreeBuilder()`
    `QueryTreeBuilder(QueryParserFactory parserFactory)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `CommonTree` | `parse(java.lang.String query)` Parses the user query and returns its AST.

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### QueryTreeBuilder

          public QueryTreeBuilder()

    - #### QueryTreeBuilder

          public QueryTreeBuilder(QueryParserFactory parserFactory)

  - ### Method Detail

    - #### parse

          public CommonTree parse(java.lang.String query)
                           throws RecognitionException

      Parses the user query and returns its AST.
      Parameters:
        `query` - the user query to be parsed
      Returns:
        a CommonTree constructed from the query
      Throws:
        `RecognitionException` - if the user query is invalid
        `java.lang.NullPointerException` - if query is null